package cn.zy.framework.util;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;

/**
 * @Author: Administrator
 * @Description:
 * @Date: Created in 17:09 2021/9/11
 * @Modified By:
 * @version: 1.0
 * JSON 工具类
 */
public final class JsonUtil {
	private static final Logger LOGGER = LoggerFactory.getLogger(JsonUtil.class);

	private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper();

	/**
	 * 将 POJO 转为 JSON
	 */
	public static <T> String toJson(T obj){
		String json;
		try {
			json = OBJECT_MAPPER.writeValueAsString(obj);
		} catch (JsonProcessingException e) {
			LOGGER.error("convert POJO to JSON failed", e);
			throw new RuntimeException(e);
		}
		return json;
	}

	/**
	 * 将 JSON 转为 POJO
	 */
	public static <T> T fromJson(String json, Class<T> type){
		T pojo;
		try {
			pojo = OBJECT_MAPPER.readValue(json , type);
		} catch (Exception e) {
			LOGGER.error("convert JSON to POJO failed", e);
			throw new RuntimeException(e);
		}
		return pojo;
	}



}
